Featuring X-VENT fabric technology, the  2XU Women's Aero Singlet combines a double-knit constructed main panel, leveraging an inner layer to transport sweat away from skin and an outer layer to disperse moisture on the surface, delivering rapid moisture management.  The lightweight breathable mesh back panel, engineered to enhance breathability and ventilation, keeps you dry and cool so you can perform in at your best. Be sure to be seen, with reflective logos and trims on front, arms and back, providing 360-degree visibility in low-light conditions.